CN114607901A - On-spot convenient surveying and mapping device that adjusts of building engineering cost - Google Patents
On-spot convenient surveying and mapping device that adjusts of building engineering cost Download PDFInfo
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- CN114607901A CN114607901A CN202210328609.6A CN202210328609A CN114607901A CN 114607901 A CN114607901 A CN 114607901A CN 202210328609 A CN202210328609 A CN 202210328609A CN 114607901 A CN114607901 A CN 114607901A
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- 238000013507 mapping Methods 0.000 title claims abstract description 33
- 230000007246 mechanism Effects 0.000 claims abstract description 40
- 230000001681 protective effect Effects 0.000 claims abstract description 29
- 238000010276 construction Methods 0.000 claims abstract description 22
- 238000004804 winding Methods 0.000 claims description 16
- 230000002457 bidirectional effect Effects 0.000 claims description 9
- 230000005484 gravity Effects 0.000 description 4
- 230000009471 action Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000005259 measurement Methods 0.000 description 2
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16M—FRAMES, CASINGS OR BEDS OF ENGINES, MACHINES OR APPARATUS, NOT SPECIFIC TO ENGINES, MACHINES OR APPARATUS PROVIDED FOR ELSEWHERE; STANDS; SUPPORTS
- F16M11/00—Stands or trestles as supports for apparatus or articles placed thereon ; Stands for scientific apparatus such as gravitational force meters
- F16M11/02—Heads
- F16M11/04—Means for attachment of apparatus; Means allowing adjustment of the apparatus relatively to the stand
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16M—FRAMES, CASINGS OR BEDS OF ENGINES, MACHINES OR APPARATUS, NOT SPECIFIC TO ENGINES, MACHINES OR APPARATUS PROVIDED FOR ELSEWHERE; STANDS; SUPPORTS
- F16M11/00—Stands or trestles as supports for apparatus or articles placed thereon ; Stands for scientific apparatus such as gravitational force meters
- F16M11/42—Stands or trestles as supports for apparatus or articles placed thereon ; Stands for scientific apparatus such as gravitational force meters with arrangement for propelling the support stands on wheels
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Conveying And Assembling Of Building Elements In Situ (AREA)
Abstract
The invention is suitable for the technical field of surveying and mapping, and provides a surveying and mapping device for conveniently adjusting construction engineering cost on site, which comprises: a support plate; the supporting mechanism is arranged at the bottom of the supporting plate; the protective shell comprises fixed side plates and movable side plates, the fixed side plates are fixed on two sides of the supporting plate, the movable side plates are two in number and are arranged on the supporting plate in a sliding mode, and the movable side plates are located between the two fixed side plates; the connecting assembly is arranged on the inner wall of the protective shell; the supporting movable assembly is arranged at the axis of the connecting assembly through a universal bearing and used for fixing the surveying instrument; the conical horizontal adjusting block is fixed at the lower end of the supporting movable assembly; the fixing mechanism is arranged on the movable side plate and used for fixedly supporting the movable assembly; the adjusting mechanism is arranged on the supporting plate and used for adjusting the position of the supporting movable assembly; and the protective top plate is arranged at the tops of the fixed side plate and the movable side plate, so that the level of the surveying instrument can be adjusted conveniently.
Description
Technical Field
The invention belongs to the technical field of surveying and mapping, and particularly relates to a surveying and mapping device for conveniently adjusting construction cost on site.
Background
The construction project cost site surveying and mapping device is one kind of auxiliary device for leveling, angle measurement, distance measurement, etc. in construction project cost site.
At present, the on-spot mapping device of building engineering cost is complicated to operate, needs to spend many time timing support frame positions for the surveying instrument is in the level, needs to improve urgently.
Disclosure of Invention
The invention aims to provide a construction project cost on-site convenient adjustment and mapping device, and aims to solve the problems in the background technology.
The invention is realized in this way, a construction project cost on-site convenient adjustment surveying and mapping device, comprising:
a support plate;
the supporting mechanism is arranged at the bottom of the supporting plate;
the protective shell comprises fixed side plates and movable side plates, the fixed side plates are fixed on two sides of the supporting plate, the movable side plates are two in number and are arranged on the supporting plate in a sliding mode, and the movable side plates are located between the two fixed side plates;
the connecting assembly is arranged on the inner wall of the protective shell;
the supporting movable assembly is arranged at the axis of the connecting assembly through a universal bearing and used for fixing the surveying instrument;
the conical horizontal adjusting block is fixed at the lower end of the supporting movable assembly;
the fixing mechanism is arranged on the movable side plate and used for fixedly supporting the movable assembly;
the adjusting mechanism is arranged on the supporting plate and used for adjusting the position of the supporting movable assembly so as to enable the surveying instrument to extend out of the protective shell; and
and the protective top plate is arranged on the tops of the fixed side plate and the movable side plate.
Preferably, a lifting handle is fixedly connected to the protective top plate.
Preferably, the connection assembly comprises:
the first connecting rod is connected with the supporting movable assembly through a universal bearing; and
the fixing seat is obliquely arranged, one end of the fixing seat is hinged with the inner wall of the movable side plate, and the other end of the fixing seat is hinged with the outer wall of the first connecting rod.
Preferably, the adjustment mechanism comprises:
the bidirectional screw is in threaded connection with the movable side plate;
the fixing plate is fixed on the supporting plate and is rotationally connected with the bidirectional screw;
the first rotating handle is fixed on one end of the bidirectional screw; and
the second rotating handle penetrates through the first rotating handle and is nested on the supporting mechanism.
Preferably, the supporting movable assembly comprises:
the mounting seat is used for mounting and fixing the surveying instrument; and
and the second connecting rod is fixed on the mounting seat and is connected with the first connecting rod through a universal bearing.
Preferably, the fixing base is provided with the spacing groove that supplies the universal bearing installation, and the spacing groove is installed and is used for the spacing end cover of universal bearing, the fixing base is provided with the holding tank that supplies the second connecting rod wobbling.
Preferably, the fixing mechanism includes:
the fixed frame is fixed on the movable side plate;
the winding wheel is rotationally arranged on the fixed frame;
the driving shaft is fixed at the axle center of the winding wheel and used for driving the winding wheel to rotate;
one end of the connecting rope is wound on the winding wheel, and the other end of the connecting rope is fixed on the movable supporting component; and
and the limiting assembly is arranged on the movable side plate and used for limiting the winding wheel.
Preferably, the spacing assembly includes:
the limiting seat is attached to the driving shaft and is abutted against the outer wall of the movable side plate; and
and the fastener penetrates through the limiting seat and is in threaded connection with the movable side plate.
Preferably, the protection top plate is fixedly connected with a positioning rod, the lower end of the positioning rod is in a frustum shape, and the positioning rod is nested in the movable side plate.
The construction cost on-site convenient-adjustment surveying and mapping device provided by the embodiment of the invention is characterized in that the device is provided with a supporting plate, a supporting mechanism, a protective shell, a connecting assembly, a supporting movable assembly, a conical horizontal adjusting block, a fixing mechanism, an adjusting mechanism and a protective top plate, when the device is moved to a surveying and mapping position, the device is firstly stabilized, then the fixing of the supporting movable assembly is released through the fixing mechanism, at the moment, because the lower end of the conical horizontal adjusting block is conical, the conical horizontal adjusting block is always kept vertically downward under the action of gravity, the conical horizontal adjusting block is vertical to a horizontal plane, the conical horizontal adjusting block drives the supporting movable assembly to enable the supporting movable assembly to be vertical to the horizontal plane, so that a surveying and mapping instrument arranged on the supporting movable assembly is at a horizontal angle and is not influenced by the supporting angle of the protective shell and the connecting assembly to the supporting movable assembly, and finally, the support movable assembly is fixed through the fixing mechanism, so that the support movable assembly cannot shake, the influence of external wind and air flow is avoided, the angle of the surveying instrument deviates, the structure is simple and ingenious, and the adjustment is quick and convenient.
Drawings
Fig. 1 is a schematic structural diagram of a construction engineering cost on-site convenient-adjustment surveying and mapping device provided by an embodiment of the invention.
Fig. 2 is a schematic top view of a support plate and a protective housing in the construction cost on-site convenient-adjustment surveying and mapping device according to the embodiment of the present invention.
Fig. 3 is a partial schematic view of a fixing seat and a second connecting rod in the construction cost on-site convenient-adjustment surveying and mapping device provided by the embodiment of the invention.
Fig. 4 is a schematic front view of a fixing side plate and a fixing mechanism in the construction cost on-site convenient-adjustment surveying and mapping device provided by the embodiment of the invention.
Fig. 5 is an enlarged view of fig. 1 at a.
Fig. 6 is a three-dimensional structure diagram of a positioning rod in a construction cost on-site convenient-adjustment surveying and mapping device provided by an embodiment of the invention.
In the drawings: 1-a support plate; 2-a support mechanism; 3-a protective shell; 301-fixed side plates; 302-a movable side plate; 4-a connecting assembly; 401-a fixed seat; 402-a first connecting rod; 5-supporting the movable assembly; 501-a mounting seat; 502-a second connecting rod; 6-a conical horizontal adjusting block; 7-a fixing mechanism; 701-a fixing frame; 702-a take-up wheel; 703-a drive shaft; 704-connecting rope; 705-a limiting seat; 706-a fastener; 8-an adjusting mechanism; 801-bidirectional screw; 802-fixing the plate; 803-first stem; 804-a second stem; 9-a protective top plate; 10-lifting a handle; 11-a positioning rod; 12-a through slot; 13-a limiting groove; 14-a limit end cover; 15-accommodating the tank.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and do not limit the invention.
Specific implementations of the present invention are described in detail below with reference to specific embodiments.
As shown in fig. 1 and fig. 2, a schematic structural diagram of a surveying and mapping device for conveniently adjusting construction cost on site according to an embodiment of the present invention includes:
a support plate 1;
the supporting mechanism 2 is arranged at the bottom of the supporting plate 1;
the protective shell 3 comprises fixed side plates 301 and movable side plates 302, the fixed side plates 301 are fixed on two sides of the support plate 1, the movable side plates 302 are two in number and are arranged on the support plate 1 in a sliding mode, and the movable side plates 302 are located between the two fixed side plates 301;
the connecting assembly 4 is arranged on the inner wall of the protective shell 3;
the supporting movable assembly 5 is arranged at the axis of the connecting assembly 4 through a universal bearing and used for fixing the surveying instrument;
the conical horizontal adjusting block 6 is fixed at the lower end of the supporting movable assembly 5, and the supporting plate 1 is provided with a through groove 12 for the conical horizontal adjusting block 6 to pass through;
the fixing mechanism 7 is arranged on the movable side plate 302 and is used for fixedly supporting the movable assembly 5 so as to prevent the movable assembly from moving;
an adjusting mechanism 8 mounted on the support plate 1 for adjusting the position of the movable support member 5 so that the surveying instrument protrudes out of the protective housing 3; and
and a protective top plate 9 mounted on the tops of the fixed side plate 301 and the movable side plate 302.
In the embodiment of the invention, when the device is moved to the surveying and mapping position, the device is firstly stabilized, then the fixing of the supporting movable assembly 5 is released through the fixing mechanism 7, at the moment, because the lower end of the conical horizontal adjusting block 6 is conical, the conical horizontal adjusting block 6 is always kept vertically downward under the action of gravity, the conical horizontal adjusting block 6 is vertical to the horizontal plane, the conical horizontal adjusting block 6 drives the supporting movable assembly 5 to ensure that the supporting movable assembly 5 is vertical to the horizontal plane, so that the surveying and mapping instrument arranged on the supporting movable assembly 5 is in a horizontal angle and is not influenced by the protective shell 3 and the connecting assembly 4 to the supporting angle of the supporting movable assembly 5, and finally the supporting movable assembly 5 is fixed through the fixing mechanism 7, so that the supporting movable assembly 5 cannot shake, and the deviation of the angle of the surveying and mapping instrument caused by the influence of external wind and air current is avoided, simple structure is ingenious, and the timing is convenient fast.
In one aspect of this embodiment, a lifting handle 10 is fixedly connected to the protection top plate 9, and the protection top plate 9 can be conveniently taken out from the movable side plate 302 and the fixed side plate 301 by grabbing the lifting handle 10.
As shown in fig. 1, as a preferred embodiment of the present invention, the connecting assembly 4 includes:
the fixed seat 401 is connected with the movable supporting component 5 through a universal bearing; and
the first connecting rod 402 is obliquely arranged, one end of the first connecting rod is hinged to the inner wall of the movable side plate 302, and the other end of the first connecting rod is hinged to the outer wall of the fixed seat 401.
In the embodiment of the present invention, by removing the protection top plate 9 and then adjusting the positions of the two movable side plates 302 by the adjusting mechanism 8, the movable side plates 302 move away from each other, the movable side plates 302 drive the fixing base 401 to move, the fixing base 401 drives the first connecting rod 402 to move upward, and the first connecting rod 402 drives the supporting movable assembly 5 to move upward, so as to extend out of the protection housing 3.
It should be stated that, when the connecting component 4 is inclined and arranged downwards, the two movable side plates 302 can be moved towards each other, so that the protective shell 3 is driven upwards, and only the inclination angle of the connecting component 4 needs to be adjusted.
As shown in fig. 1, as another preferred embodiment of the present invention, the adjusting mechanism 8 includes:
the bidirectional screw 801 is in threaded connection with the movable side plate 302;
the fixing plate 802 is fixed on the support plate 1 and is rotationally connected with the bidirectional screw 801;
a first handle 803 fixed to one end of the bidirectional screw 801; and
and a second rotating handle 804 which penetrates through the first rotating handle 803 and is nested on the supporting mechanism 2.
In the embodiment of the present invention, the second rotating handle 804 is pulled out, so as to grab the second rotating handle 804 and shake, the second rotating handle 804 drives the first rotating handle 803 to rotate, the first rotating handle 803 drives the two-way screw 801 to rotate, and the two-way screw 801 drives the two movable side plates 302 to move.
It should be noted that the adjusting mechanism 8 may also adopt two lifting members to drive the movable side plate 302 to move.
As shown in fig. 1, as another preferred embodiment of the present invention, the supporting movable assembly 5 includes:
the mounting seat 501 is used for mounting and fixing the surveying instrument; and
and the second connecting rod 502 is fixed on the mounting seat 501 and is connected with the fixed seat 401 through a universal bearing.
It should be noted that the second connecting rod 502 in the supporting movable assembly 5 can be in the form of a telescopic rod, so as to adjust the torque with the connecting assembly 4 as a fulcrum, and thus, the center of gravity of the conical horizontal adjusting block 6 can be more easily utilized to achieve the leveling effect.
As shown in fig. 3, in one aspect of the present embodiment, the fixing base 401 is provided with a limiting groove 13 for mounting the universal bearing, a limiting end cap 14 for limiting the universal bearing is mounted on the limiting groove 13, and the fixing base 401 is provided with an accommodating groove 15 for swinging the second connecting rod 502.
As shown in fig. 1 and 4, as another preferred embodiment of the present invention, the fixing mechanism 7 includes:
a fixed frame 701 fixed on the movable side plate 302;
a winding wheel 702 rotatably disposed on the fixing frame 701;
a driving shaft 703 fixed to the axis of the winding wheel 702 for driving the winding wheel 702 to rotate;
one end of the connecting rope 704 is wound on the winding wheel 702, and the other end is fixed on the movable supporting component 5; and
and the limiting assembly is arranged on the movable side plate 302 and used for limiting the rolling wheel 702.
In the embodiment of the invention, the limiting component is released, then the driving shaft 703 is rotated, the driving shaft 703 drives the winding wheel 702 to rotate, the winding wheel 702 can pay out and take up the connecting ropes 704, the supporting movable component 5 can be fixed through the matching of the two groups of fixing mechanisms 7, and in the using process, the two connecting ropes 704 only need to be pulled to be in a tightened state, and the supporting movable component 5 cannot be pulled to move.
It should be noted that the fixing mechanism 7 can also be fixed in a pressing manner
In one aspect of this embodiment, the position limiting assembly includes:
a limiting seat 705 attached to the driving shaft 703 and abutting against the outer wall of the movable side plate 302; and
and the fastener 706 penetrates through the limiting seat 705 and is in threaded connection with the movable side plate 302.
It should be stated that the limiting component may also be a limiting block, a fixing pin, etc.
As shown in fig. 1, 5 and 6, as another preferred embodiment of the present invention, the guard top plate 9 is fixedly connected with a positioning rod 11, the lower end of the positioning rod 11 is in a frustum shape, and the positioning rod 11 is nested in the movable side plate 302, so that the fixed side plate 301 and the movable side plate 302 are fixed to protect the top.
The invention provides a construction cost on-site convenient adjustment surveying and mapping device in the above embodiment, by arranging the support plate 1, the support mechanism 2, the protective shell 3, the connection assembly 4, the support movable assembly 5, the conical horizontal adjustment block 6, the fixing mechanism 7, the adjustment mechanism 8 and the protective top plate 9, when the device is moved to a surveying and mapping position, the device is firstly stabilized, then the fixing of the support movable assembly 5 is released through the fixing mechanism 7, at this time, because the lower end of the conical horizontal adjustment block 6 is conical, the conical horizontal adjustment block 6 is always kept vertically downward under the action of gravity, the conical horizontal adjustment block 6 is vertical to the horizontal plane, the conical horizontal adjustment block 6 drives the support movable assembly 5 to enable the support movable assembly 5 to be vertical to the horizontal plane, so that the surveying and mapping instrument installed on the support movable assembly 5 is in a horizontal angle and is not influenced by the protective shell 3, Coupling assembling 4 is to the influence of the support angle that supports movable assembly 5, and rethread fixed establishment 7 is fixed supporting movable assembly 5 at last for support movable assembly 5 can't rock, avoids receiving the influence of external wind, air current, thereby causes the surveying instrument angle to take place the skew, and simple structure is ingenious, and the timing is convenient fast.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.
Claims (9)
1. The utility model provides a surveying and mapping device is adjusted to building engineering cost is on-spot convenient, its characterized in that includes:
a support plate;
the supporting mechanism is arranged at the bottom of the supporting plate;
the protective shell comprises fixed side plates and movable side plates, the fixed side plates are fixed on two sides of the supporting plate, the movable side plates are two in number and are arranged on the supporting plate in a sliding mode, and the movable side plates are located between the two fixed side plates;
the connecting assembly is arranged on the inner wall of the protective shell;
the supporting movable assembly is arranged at the axle center of the connecting assembly through a universal bearing and is used for fixing the surveying instrument;
the conical horizontal adjusting block is fixed at the lower end of the supporting movable assembly;
the fixing mechanism is arranged on the movable side plate and used for fixing and supporting the movable assembly;
the adjusting mechanism is arranged on the supporting plate and used for adjusting the position of the supporting movable assembly so as to enable the surveying instrument to extend out of the protective shell; and
and the protective top plate is arranged on the tops of the fixed side plate and the movable side plate.
2. The construction cost on-site convenient adjusting and surveying device according to claim 1, wherein a lifting handle is fixedly connected to the protective top plate.
3. The construction cost on-site convenient adjustment mapping apparatus according to claim 1, wherein the connection assembly comprises:
the fixed seat is connected with the supporting movable assembly through a universal bearing; and
the first connecting rod is obliquely arranged, one end of the first connecting rod is hinged with the inner wall of the movable side plate, and the other end of the first connecting rod is hinged with the outer wall of the fixed seat.
4. The construction cost on-site convenient adjustment mapping device according to claim 3, wherein the adjustment mechanism comprises:
the bidirectional screw is in threaded connection with the movable side plate;
the fixing plate is fixed on the supporting plate and is rotationally connected with the bidirectional screw;
the first rotating handle is fixed on one end of the bidirectional screw; and
the second rotating handle penetrates through the first rotating handle and is nested on the supporting mechanism.
5. The construction cost on-site convenient adjustment mapping apparatus according to claim 4, wherein the supporting movable assembly comprises:
the mounting base is used for mounting and fixing the surveying instrument; and
and the second connecting rod is fixed on the mounting seat and is connected with the fixed seat through the universal bearing.
6. The on-site convenient adjustment and mapping device for the construction cost according to claim 5, wherein the fixing seat is provided with a limiting groove for mounting the universal bearing, a limiting end cover for limiting the universal bearing is mounted on the limiting groove, and the fixing seat is provided with a receiving groove for swinging the second connecting rod.
7. The construction cost on-site convenient adjustment mapping apparatus according to any one of claims 1-6, wherein the fixing mechanism comprises:
the fixed frame is fixed on the movable side plate;
the winding wheel is rotatably arranged on the fixed frame;
the driving shaft is fixed at the axle center of the winding wheel and used for driving the winding wheel to rotate;
one end of the connecting rope is wound on the winding wheel, and the other end of the connecting rope is fixed on the supporting movable assembly; and
and the limiting assembly is arranged on the movable side plate and used for limiting the winding wheel.
8. The on-site convenient adjustment and mapping device for construction cost according to claim 7, wherein the limiting component comprises:
the limiting seat is attached to the driving shaft and is abutted against the outer wall of the movable side plate; and
and the fastener penetrates through the limiting seat and is in threaded connection with the movable side plate.
9. The on-site convenient adjusting and mapping device for the construction cost of the constructional engineering according to any one of claims 1 to 6, wherein the protective top plate is fixedly connected with a positioning rod, the lower end of the positioning rod is in a frustum shape, and the positioning rod is nested in the movable side plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210328609.6A CN114607901A (en) | 2022-03-30 | 2022-03-30 | On-spot convenient surveying and mapping device that adjusts of building engineering cost |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210328609.6A CN114607901A (en) | 2022-03-30 | 2022-03-30 | On-spot convenient surveying and mapping device that adjusts of building engineering cost |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114607901A true CN114607901A (en) | 2022-06-10 |
Family
ID=81867424
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210328609.6A Withdrawn CN114607901A (en) | 2022-03-30 | 2022-03-30 | On-spot convenient surveying and mapping device that adjusts of building engineering cost |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114607901A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117454225A (en) * | 2023-11-13 | 2024-01-26 | 承德市工程建设造价管理站 | Engineering cost data management system |
-
2022
- 2022-03-30 CN CN202210328609.6A patent/CN114607901A/en not_active Withdrawn
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117454225A (en) * | 2023-11-13 | 2024-01-26 | 承德市工程建设造价管理站 | Engineering cost data management system |
| CN117454225B (en) * | 2023-11-13 | 2024-05-14 | 承德市工程建设造价管理站 | Engineering cost data management system |
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Application publication date: 20220610 |
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